''Speleoperipatus'' is a monospecific genus of

velvet worm Onychophora (from grc, ονυχής, , "claws"; and , , "to carry"), commonly known as velvet worms (due to their velvety texture and somewhat wormlike appearance) or more ambiguously as peripatus (after the first described genus, '' Peripatus ...

in the

Peripatidae Peripatidae is a family of velvet worms. The oldest putative representatives of the family herald from Burmese amber dated to the mid-Cretaceous, around 100 Ma, with representatives from Dominican and Baltic amber attesting to a broader distribu ...

family, containing the single species ''Speleoperipatus spelaeus''. This species is a pale greenish yellow, almost white, with 22 or 23 pairs of legs and no eyes. Specimens range from 27 mm to 34 mm in length. The minimum number of leg pairs found in this species (22) is also the minimum number found in the

neotropical The Neotropical realm is one of the eight biogeographic realms constituting Earth's land surface. Physically, it includes the tropical terrestrial ecoregions of the Americas and the entire South American temperate zone. Definition In bioge ...

Peripatidae. This velvet worm is

viviparous Among animals, viviparity is development of the embryo inside the body of the parent. This is opposed to oviparity which is a reproductive mode in which females lay developing eggs that complete their development and hatch externally from the ...

, with mothers supplying nourishment to their embryos through a placenta.

Distribution and habitat

''Speleoperipatus spelaeus'' is a troglobiont known only from two cave systems in northern St. Catherine,

Jamaica Jamaica (; ) is an island country situated in the Caribbean Sea. Spanning in area, it is the third-largest island of the Greater Antilles and the Caribbean (after Cuba and Hispaniola). Jamaica lies about south of Cuba, and west of His ...

; Pedro Cave and Swansea Cave. One other troglobitic velvet worm species is known; '' Peripatopsis alba'', from Wynberg Cave and Bats Cave, on

Table Mountain Table Mountain ( naq, Huriǂoaxa, lit= sea-emerging; af, Tafelberg) is a flat-topped mountain forming a prominent landmark overlooking the city of Cape Town in South Africa. It is a significant tourist attraction, with many visitors using the ...

South Africa South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. It is bounded to the south by of coastline that stretch along the Atlantic Ocean, South Atlantic and Indian Oceans; to the ...

Conservation

Only seven individuals have been found as of 2021; four specimens collected by Dr. Stewart Peck in 1975 at Pedro Cave, one individual found (not collected, but confirmed photographically by Peck) at Swansea Cave by members of the Jamaican Cave Organisation (JCO) in 2010, and two more found again at Swansea Cave by the JCO in November, 2021. The species is listed as Critically Endangered on the

IUCN Red List The International Union for Conservation of Nature (IUCN) Red List of Threatened Species, also known as the IUCN Red List or Red Data Book, founded in 1964, is the world's most comprehensive inventory of the global conservation status of biol ...

References

Blind onychophorans Critically endangered fauna of North America Endemic fauna of Jamaica IUCN-assessed onychophorans Monotypic protostome genera Onychophorans of tropical America Onychophoran genera Taxonomy articles created by Polbot Troglobitic onychophorans {{Onychophora-stub